I Is For Intermodal. As CSX I168-19 (59th Street Yard - Chicago, IL to Port Newark, NJ, CSXT 944 [ES44AH] leading) passed the Regal Bag Building in Newburgh, New York on October 20, 2021, its symbol was noted by many in the area as unusual. A few days prior, CSX separated its Intermodal trains from "Q - Manifest" trains after previously sharing the symbol.
